Any good gun addons?

You will get this answer everywhere: M9K. It is by far the best with quality textures and loads of weapons to choose from. You can even get M9K specialties which contains things like nukes and rocket launchers. Especially useful for server owners, you can get the M9K Administration tool, all for free of the workshop.http://steamcommunity.com/id/INCONCEIVABLEINCONCEIVABLE/myworkshopfiles/?appid=4000 link to M9K page. Cheers